Heidideitrick896 Heidideitrick896
  • 23-01-2024
  • Biology
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Which step is a part of internal respiration?
a) Oxygen-rich blood moves to tissues and cells.
b) Air is inhaled through the nostrils or mouth.
c) Air is exhaled through the nostrils or mouth.
d) Gases are exchanged at the alveoli.

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